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PTC (positive temperature coefficient) electrical heating assembly

A technology of electric heating and components, applied in the direction of ohmic resistance heating parts, heating element materials, etc., can solve the problems of poor safety and easy fire, and achieve the effect of improving safety, reducing the possibility of fire, and improving heat resistance

Inactive Publication Date: 2012-07-25
HAIER GRP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the problems that PTC heaters are easy to catch fire and have poor safety in the related art, the present invention proposes a PTC electric heating assembly, which can avoid the accumulation of insulators to form a conductive path, reduce the possibility of fire, and improve the safety of the device

Method used

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  • PTC (positive temperature coefficient) electrical heating assembly
  • PTC (positive temperature coefficient) electrical heating assembly
  • PTC (positive temperature coefficient) electrical heating assembly

Examples

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Embodiment Construction

[0028] According to an embodiment of the present invention, a PTC electric heating assembly is provided, such as figure 2 and image 3 As shown, the PTC electric heating assembly according to the embodiment of the present invention includes a PTC base 1, a mounting protrusion 2, a heat sink 3, and two conductive blade terminals 4, wherein the PTC base 1 is socketed to the heat sink 3, Two conductive blade terminals 4 are connected to the heat sink 3, the installation protrusion 2 is fixed in the PTC base 1 (may be integrally formed with the base 1), and the installation protrusion 2 is inserted between the two conductive blade terminals 4 .

[0029] Such as image 3 As shown, the surface of the part B where the installation protrusion 2 is inserted between the two conductive blade terminals 4 is also coated with silicone, and the part B where the installation protrusion 2 is inserted between the two conductive blade terminals 4 is tapered. In addition, the part A where the...

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Abstract

The invention discloses a PTC (positive temperature coefficient) electrical heating assembly, which comprises an installation projection, radiating fins and two conductive insert terminals. The two conductive insert terminals are connected to the radiating fins. The installation projection is inserted between the two conductive insert terminals and the inserted portion of the installation projection is coated with silica gel. Since the installation projection is coated with the silica gel, heat resistance of the whole electrical heating assembly is enhanced, conducting path formed between the conductive insert terminals caused by excess temperatures is avoided, and accordingly, possibility of fire is lowered and safety of the electrical heating assembly is improved.

Description

technical field [0001] The present invention relates to the field of electrical equipment, and in particular, relates to a positive temperature coefficient (Positive Temperature Coefficient, PTC for short) electric heating assembly. Background technique [0002] PTC thermistor, referred to as PTC thermistor, is a typical temperature-sensitive semiconductor resistor. When it exceeds a certain temperature, its resistance value increases stepwise with the increase of temperature. PTC heater has the advantages of constant temperature heating, no open flame, high heat conversion rate, little influence on power supply voltage and long life. [0003] PTC thermistors can be made into a variety of shapes and specifications, and the common ones are disc-shaped, rectangular, strip-shaped, ring-shaped, and honeycomb porous. Various forms of high-power PTC heating elements can be formed by combining the above-mentioned PTC heating elements and metal components. [0004] PTC heater is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/02H05B3/10
Inventor 王友宁北山正弘
Owner HAIER GRP CORP
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